Two reactions with different activation energies have the same rate at room temperature.Which statement describes the rates of these two reactions at the same, higher temperature?☐ More information is needed to make a conclusion.The two reactions will continue to occur at the same rate.The reaction with the higher activation energy will be faster.The reaction with the lower activation energy will be faster.

Consider two reactions (A and B) with different activation energies. At room temperature, both…

Answered: Two reactions with different activation…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Some measurements of the initial rate of a certain reaction are given in the table below. alo N2| |H2 initial rate of reaction 0.875 M 1.32M 0.0545 M/s 0.875 M 0.342M 0.0141 M/s 3.25 M 1.32 M 0.752 M/s Use this information to write a rate law for this reaction, and calculate the value of the rate constant k. Round your value for the rate constant to 3 significant digits. Also be sure your answer has the correct unit symbol. rate = k O k = 0
Some measurements of the initial rate of a certain reaction are given in the table below. [N₂] [H₂] initial rate of reaction 1.30M 0.612M 22.0M/s 3.84M 0.612M 192.M/s 1.30M 0.118M 0.818M/s Use this information to write a rate law for this reaction, and calculate the value of the rate constant k. Round your value for the rate constant to 3 significant digits. Also be sure your answer has the correct unit symbol. rate = k k= 0 ☐ x10 0 X
At a given temperature, a reaction has a rate constant of 5.83 x 10 -5 s -1. If the starting concentration is 2.65 Molar, the initial instantaneous rate will be At a given temperature, a reaction has a rate constant of 5.83 x 10 -5 s -1. If the starting concentration is 2.65 Molar, the initial instantaneous rate will be 6.91 x 10 -7 M/s 2.00 M/s 4.28 x 10 -1 M/s 0.962 M/s 7.15 x 10 -1 M/s 8.93 x 10 -3 M/s 1.54 x 10 -4 M/s 1.56 M/s
8. Smelling salt decomposes spontaneously at room temperature by the equation below. A student places a 10.00-g sample into a 1-liter sealed rigid vessel. What measurements should the student make to determine the rate of this reaction?(NH4)2CO3(s)→2NH3(g)+H2O(g)+CO2(g) a. change in mass and temperature b. temperature and time c. change in mass and time d. change in pressure and time
General Chemistry 4th Edition McQuarrie • Rock • Gallogly University Science Books presented by Macmillan Learning The reaction C,H, (g) → 2 C,H,(g) has an activation energy of 262 kJ/mol. At 600.0 K, the rate constant, k, is 6.1 × 10-8 s-1. What is the value of the rate constant at 750.0 K? k = 1.34 x103 Incorrect
A certain reaction is known to have an activation energy E= 9.0 kJ/mol. Furthermore, the rate of this reaction is measured at 350. K and found to be 4.5 x 10° M/s. Use this information to answer the questions in the table below. Suppose the concentrations of all reactants is kept the same, but the temperature is raised by 5% from 350. K to 368. K. How will the rate of the reaction change? The rate will choose one choose one stay the same rise about 5% rise more than 5% rise less than 5% fall about 5% fall more than 5% fall less than 5%
Some measurements of the initial rate of a certain reaction are given in the table below. N2 H2 initial rate of reaction 0.450M 1.87M 14.0 M/s 0.450M 5.06M 103. M/s 0.0545 M 1.87M 0.205 M/s Use this information to write a rate law for this reaction, and calculate the value of the rate constant k. Round your value for the rate constant to 3 significant digits. Also be sure your answer has the correct unit symbol. rate = k k = |
Time, s C3H8], M 0.0 0.26 10.0 0.18 20.0 0.14 30.0 0.10 . 40.0 0.064 .50.0 0.052 M
Which one of the following statements is False? The rate constant depends on the activation energy of a reaction. A catalyst lowers the activation energy of a reaction. Rate constants are not temperature dependent.
22. The rate of a reaction depends on many factors such as the concentration of the reactants. Which of the following explains why an increase in the concentration of reactants affects the rate of reaction? The reactants move faster. The collisions increase between the reactants. There are fewer molecules present. The activation energy is lowered.
2. Consider the reaction: NH4 (aq) + 2NO2 (aq) → N2(g) + 2H2O[g) Rate = k[NH4*][NO2] Which of the following reaction conditions will generally result in a longer reaction time? O Adding a catalyst to the reaction mixture. O Placing the reaction mixture in a hot water bath. O Increasing the concentration of any reactants. O Adding distilled water to the mixture.
If the activation energy of a reaction increases, what happens to the rate constant (k)? A.the rate constant decreases B.the rate constant stays the same C. there isn't enough information to predict what happens to the rate constant D. the rate constant increases

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